METHOD FOR DETERMINING THE STATE OF CHARGE OF NICKEL CADMIUM BATTERIES BY MEASURING THE FARAD CAPACITANCE THEREOF
First Claim
2. The method of claim 1 for determining the state-of-charge of a nickel-cadmium battery wherein the batteries are initially discharged, fully charged, left standing for three hours, and then the farad capacitance thereof is measured whereby the measured capacitance indicates the state-of-charge of the battery with reference to the standard reference curve.
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Accused Products

Abstract
Method for predicting the capacity of nickel-cadmium batteries with a standard reference curve that indicates battery capacitance as a function of the state-of-charge of a given nickel-cadmium battery type wherein the standard reference curve is used with the measurement of the capacitance of any battery of the given type to indicate the state-of-charge of the battery.
220 Citations
BATTERY TESTER FOR ELECTRIC VEHICLE | ||
Patent #
US 20110015815A1
Filed 09/23/2010
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Automotive vehicle battery test system | ||
Patent #
US 7,924,015 B2
Filed 05/06/2010
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery tester with promotion feature | ||
Patent #
US 7,940,053 B2
Filed 05/25/2010
|
Current Assignee
Interstate Battery Systems Of America Incorporated, Midtronics Incorporated
|
Original Assignee
Interstate Battery Systems Of America Incorporated, Midtronics Incorporated
|
Electronic battery test based upon battery requirements | ||
Patent #
US 7,940,052 B2
Filed 02/02/2010
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
In-vehicle battery monitor | ||
Patent #
US 7,999,505 B2
Filed 10/05/2004
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery maintenance tool with probe light | ||
Patent #
US 7,977,914 B2
Filed 10/31/2007
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
METHOD AND APPARATUS FOR DETECTING CELL DETERIORATION IN AN ELECTROCHEMICAL CELL OR BATTERY | ||
Patent #
US 20110208451A1
Filed 02/25/2010
|
Current Assignee
Keith S Champlin
|
Original Assignee
Keith S Champlin
|
AUTOMOTIVE VEHICLE ELECTRICAL SYSTEM DIAGNOSTIC DEVICE | ||
Patent #
US 20100262404A1
Filed 04/22/2010
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Kevin I. Bertness
|
Battery tester with promotion feature to promote use of the battery tester by providing the user with codes having redeemable value | ||
Patent #
US 7,791,348 B2
Filed 02/27/2007
|
Current Assignee
Interstate Battery Systems Of America Incorporated, Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Energy management system for automotive vehicle | ||
Patent #
US 7,688,074 B2
Filed 06/14/2004
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Wireless battery tester with information encryption means | ||
Patent #
US 7,772,850 B2
Filed 07/11/2005
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester with vehicle type input | ||
Patent #
US 7,656,162 B2
Filed 07/22/2004
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
SCAN TOOL FOR ELECTRONIC BATTERY TESTER | ||
Patent #
US 20100295549A1
Filed 05/06/2010
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Kevin I. Bertness
|
Electronic battery tester with databus | ||
Patent #
US 7,728,597 B2
Filed 11/03/2008
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
BATTERY TESTER WITH PROMOTION FEATURE | ||
Patent #
US 20100289498A1
Filed 05/25/2010
|
Current Assignee
Interstate Battery Systems Of America Incorporated
|
Original Assignee
Kevin I. Bertness, Stephen J. Mcshane, Michael E. Troy, Dennis V. Brown, William G. Sampson
|
Battery tester that calculates its own reference values | ||
Patent #
US 7,710,119 B2
Filed 12/14/2005
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Automotive vehicle electrical system diagnostic device | ||
Patent #
US 7,642,787 B2
Filed 10/24/2006
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Automotive vehicle electrical system diagnostic device | ||
Patent #
US 7,705,602 B2
Filed 08/29/2006
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery tester capable of identifying faulty battery post adapters | ||
Patent #
US 7,642,786 B2
Filed 05/31/2005
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Alternator tester | ||
Patent #
US 7,706,991 B2
Filed 06/11/2007
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester configured to predict a load test result based on open circuit voltage, temperature, cranking size rating, and a dynamic parameter | ||
Patent #
US 7,723,993 B2
Filed 09/02/2003
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Wireless battery monitor | ||
Patent #
US 7,774,151 B2
Filed 12/21/2004
|
Current Assignee
Franklin Grid Solutions LLC
|
Original Assignee
Midtronics Incorporated
|
Theft prevention device for automotive vehicle service centers | ||
Patent #
US 7,777,612 B2
Filed 08/03/2006
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery run down indicator | ||
Patent #
US 7,808,375 B2
Filed 04/09/2008
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
BATTERY TESTER FOR ELECTRIC VEHICLE | ||
Patent #
US 20090024266A1
Filed 07/17/2008
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Apparatus and method for counteracting self discharge in a storage battery | ||
Patent #
US 7,479,763 B2
Filed 03/18/2004
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
METHOD AND APPARATUS FOR MEASURING A PARAMETER OF A VEHICLE ELECTRICAL SYSTEM | ||
Patent #
US 20090051365A1
Filed 10/30/2008
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery charger with booster pack | ||
Patent #
US 7,501,795 B2
Filed 06/03/2004
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Centralized data storage of condition of a storage battery at its point of sale | ||
Patent #
US 7,498,767 B2
Filed 02/16/2006
|
Current Assignee
Interstate Battery Systems International Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery test module | ||
Patent #
US 7,505,856 B2
Filed 06/02/2005
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Apparatus and method for predicting battery capacity and fitness for service from a battery dynamic parameter and a recovery voltage differential | ||
Patent #
US 7,545,146 B2
Filed 12/09/2004
|
Current Assignee
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|
Original Assignee
Midtronics Incorporated
|
SCAN TOOL FOR ELECTRONIC BATTERY TESTER | ||
Patent #
US 20090160451A1
Filed 11/03/2008
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester | ||
Patent #
US 7,557,586 B1
Filed 05/19/2003
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
SIMPLIFICATION OF INVENTORY MANAGEMENT | ||
Patent #
US 20090187495A1
Filed 04/01/2009
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
INTEGRATED TAG READER AND ENVIRONMENT SENSOR | ||
Patent #
US 20090184165A1
Filed 04/01/2009
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
SYSTEM FOR AUTOMATICALLY GATHERING BATTERY INFORMATION | ||
Patent #
US 20090212781A1
Filed 04/01/2009
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Apparatus and method for simulating a battery tester with a fixed resistance load | ||
Patent #
US 7,595,643 B2
Filed 08/21/2006
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Replaceable clamp for electronic battery tester | ||
Patent #
US 7,598,699 B2
Filed 02/20/2004
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Scan tool for electronic battery tester | ||
Patent #
US 7,598,744 B2
Filed 06/07/2005
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
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|
Battery maintenance device having databus connection | ||
Patent #
US 7,598,743 B2
Filed 02/22/2005
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery monitoring system | ||
Patent #
US 7,619,417 B2
Filed 12/14/2006
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
STORAGE BATTERY AND BATTERY TESTER | ||
Patent #
US 20090295395A1
Filed 12/04/2008
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Clamp for Electrically Coupling to a Battery Contact | ||
Patent #
US 20090311919A1
Filed 06/16/2009
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Shunt connection to a PCB of an energy management system employed in an automotive vehicle | ||
Patent #
US 7,319,304 B2
Filed 07/23/2004
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Query based electronic battery tester | ||
Patent #
US 7,363,175 B2
Filed 04/24/2006
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery testers with secondary functionality | ||
Patent #
US 7,398,176 B2
Filed 02/13/2006
|
Current Assignee
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|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester having a user interface to configure a printer | ||
Patent #
US 7,408,358 B2
Filed 06/16/2003
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery tester with promotion feature | ||
Patent #
US 20080204030A1
Filed 02/27/2007
|
Current Assignee
Interstate Battery Systems Of America Incorporated, Midtronics Incorporated
|
Original Assignee
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|
Broad-band low-inductance cables for making Kelvin connections to electrochemical cells and batteries | ||
Patent #
US 7,425,833 B2
Filed 09/12/2006
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Scan tool for electronic battery tester | ||
Patent #
US 7,446,536 B2
Filed 10/05/2004
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Broad-band low-inductance cables for making Kelvin connections to electrochemical cells and batteries | ||
Patent #
US 20070018651A1
Filed 09/12/2006
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Kevin Bertness, Keith Champlin
|
Kelvin connector for a battery post | ||
Patent #
US 7,198,510 B2
Filed 11/14/2001
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Apparatus and method for predicting the remaining discharge time of a battery | ||
Patent #
US 7,208,914 B2
Filed 12/30/2003
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery monitoring system | ||
Patent #
US 20070090844A1
Filed 12/14/2006
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Automotive vehicle electrical system diagnostic device | ||
Patent #
US 20070159177A1
Filed 10/24/2006
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Alternator tester | ||
Patent #
US 7,246,015 B2
Filed 06/09/2004
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Method and apparatus for measuring a parameter of a vehicle electrical system | ||
Patent #
US 20070194793A1
Filed 12/19/2006
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Kevin Bertness
|
Alternator tester | ||
Patent #
US 20070244660A1
Filed 06/11/2007
|
Current Assignee
Alan Melton, Kevin Bertness
|
Original Assignee
Alan Melton, Kevin Bertness
|
Electronic battery tester with relative test output | ||
Patent #
US 7,295,936 B2
Filed 02/16/2006
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Testing parallel strings of storage batteries | ||
Patent #
US 6,316,914 B1
Filed 09/14/2000
|
Current Assignee
Franklin Grid Solutions LLC
|
Original Assignee
Midtronics Incorporated
|
Test counter for electronic battery tester | ||
Patent #
US 6,225,808 B1
Filed 02/25/2000
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery tester upgrade using software key | ||
Patent #
US 7,012,433 B2
Filed 09/18/2002
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Automotive vehicle electrical system diagnostic device | ||
Patent #
US 7,126,341 B2
Filed 07/19/2002
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Apparatus for calibrating electronic battery tester | ||
Patent #
US 6,304,087 B1
Filed 09/05/2000
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
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|
Cable for electronic battery tester | ||
Patent #
US 6,913,483 B2
Filed 06/23/2003
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Theft prevention device for automotive vehicle service centers | ||
Patent #
US 7,119,686 B2
Filed 04/13/2004
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Query based electronic battery tester | ||
Patent #
US 7,034,541 B2
Filed 05/17/2005
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester | ||
Patent #
US 6,332,113 B1
Filed 05/03/1999
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Programmable current exciter for measuring AC immittance of cells and batteries | ||
Patent #
US 6,466,026 B1
Filed 10/12/2001
|
Current Assignee
Keith S Champlin
|
Original Assignee
Keith S Champlin
|
Method and apparatus for evaluating stored charge in an electrochemical cell or battery | ||
Patent #
US 6,495,990 B2
Filed 08/27/2001
|
Current Assignee
Keith S Champlin
|
Original Assignee
Keith S Champlin
|
Method and apparatus for auditing a battery test | ||
Patent #
US 6,885,195 B2
Filed 03/14/2002
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester cable | ||
Patent #
US 6,933,727 B2
Filed 06/23/2003
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Automotive battery charging system tester | ||
Patent #
US 6,351,102 B1
Filed 04/16/1999
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery test module | ||
Patent #
US 7,058,525 B2
Filed 08/13/2002
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Method and apparatus for charging a battery | ||
Patent #
US 6,313,608 B1
Filed 05/22/2000
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
In-vehicle battery monitor | ||
Patent #
US 6,850,037 B2
Filed 10/15/2002
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester with automotive scan tool communication | ||
Patent #
US 6,967,484 B2
Filed 06/12/2003
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester/charger with integrated battery cell temperature measurement device | ||
Patent #
US 6,919,725 B2
Filed 10/03/2003
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Integrated conductance and load test based electronic battery tester | ||
Patent #
US 6,456,045 B1
Filed 05/30/2001
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Alternator tester with encoded output | ||
Patent #
US 6,914,413 B2
Filed 09/05/2003
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Apparatus and method for protecting a battery from overdischarge | ||
Patent #
US 6,888,468 B2
Filed 01/22/2003
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery clamp with integrated current sensor | ||
Patent #
US 6,544,078 B2
Filed 07/18/2001
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester | ||
Patent #
US 6,781,382 B2
Filed 12/05/2002
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery tester with databus | ||
Patent #
US 6,586,941 B2
Filed 03/23/2001
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester with data bus for removable module | ||
Patent #
US 6,998,847 B2
Filed 07/01/2004
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Vehicle electrical system tester with encoded output | ||
Patent #
US 6,445,158 B1
Filed 05/22/2000
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery tester configured to receive a removable digital module | ||
Patent #
US 6,759,849 B2
Filed 10/25/2002
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Method and apparatus for electronically evaluating the internal temperature of an electrochemical cell or battery | ||
Patent #
US 6,294,897 B1
Filed 10/18/2000
|
Current Assignee
Keith S Champlin
|
Original Assignee
Keith S Champlin
|
Method and apparatus for measuring a parameter of a vehicle electrical system | ||
Patent #
US 7,154,276 B2
Filed 09/05/2003
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Energy management system for automotive vehicle | ||
Patent #
US 6,909,287 B2
Filed 10/29/2001
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery clamp with embedded environment sensor | ||
Patent #
US 6,469,511 B1
Filed 07/18/2001
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester | ||
Patent #
US 6,359,441 B1
Filed 04/28/2000
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester with network communication | ||
Patent #
US 6,871,151 B2
Filed 03/07/2002
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester | ||
Patent #
US 6,556,019 B2
Filed 03/19/2002
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Method and apparatus for evaluating stored charge in an electrochemical cell or battery | ||
Patent #
US 6,313,607 B1
Filed 09/01/1999
|
Current Assignee
Keith S Champlin
|
Original Assignee
Keith S Champlin
|
Booster pack with storage capacitor | ||
Patent #
US 7,015,674 B2
Filed 03/28/2002
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Programmable current exciter for measuring AC immittance of cells and batteries | ||
Patent #
US 6,621,272 B2
Filed 10/15/2002
|
Current Assignee
Keith S Champlin
|
Original Assignee
Keith S Champlin
|
Apparatus and method for testing rechargeable energy storage batteries | ||
Patent #
US 6,441,585 B1
Filed 06/15/2000
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester | ||
Patent #
US 6,707,303 B2
Filed 11/26/2001
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester | ||
Patent #
US 6,806,716 B2
Filed 01/29/2004
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Jamey Butteris, Kevin I. Bertness
|
Energy management system for automotive vehicle | ||
Patent #
US 6,331,762 B1
Filed 05/04/2000
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Method and apparatus using a circuit model to evaluate cell/battery parameters | ||
Patent #
US 6,737,831 B2
Filed 02/08/2002
|
Current Assignee
Keith S Champlin
|
Original Assignee
Keith S Champlin
|
Battery test module | ||
Patent #
US 7,039,533 B2
Filed 12/05/2002
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Alternator diagnostic system | ||
Patent #
US 6,363,303 B1
Filed 11/01/1999
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Method and apparatus for measuring complex self-immitance of a general electrical element | ||
Patent #
US 6,294,896 B1
Filed 11/10/2000
|
Current Assignee
Keith S Champlin
|
Original Assignee
Keith S Champlin
|
Apparatus and method for simulating a battery tester with a fixed resistance load | ||
Patent #
US 7,116,109 B2
Filed 11/11/2003
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery tester with battery replacement output | ||
Patent #
US 6,906,522 B2
Filed 03/29/2002
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
In-vehicle battery monitor | ||
Patent #
US 6,633,165 B2
Filed 09/20/2001
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery charger with booster pack | ||
Patent #
US 6,788,025 B2
Filed 06/21/2002
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester | ||
Patent #
US 6,891,378 B2
Filed 03/25/2003
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Broad-band low-inductance cables for making Kelvin connections to electrochemical cells and batteries | ||
Patent #
US 7,106,070 B2
Filed 07/22/2004
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester | ||
Patent #
US 6,566,883 B1
Filed 10/31/2000
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery test module | ||
Patent #
US 6,795,782 B2
Filed 12/05/2002
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Method and apparatus for testing cells and batteries embedded in series/parallel systems | ||
Patent #
US 6,906,523 B2
Filed 04/09/2002
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Method for evaluating capacity of secondary battery using mathematical calculation of specific resistance components of equivalent circuit model fitted from impedance spectrum | ||
Patent #
US 7,062,390 B2
Filed 07/01/2003
|
Current Assignee
Korea Kumho Petrochemical Co Limited
|
Original Assignee
Korea Kumho Petrochemical Co Limited
|
Electronic battery tester with battery failure temperature determination | ||
Patent #
US 6,930,485 B2
Filed 03/14/2003
|
Current Assignee
Interstate Battery Systems International Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester with network communication | ||
Patent #
US 7,003,411 B2
Filed 08/09/2004
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Apparatus and method for carrying out diagnostic tests on batteries and for rapidly charging batteries | ||
Patent #
US 6,424,158 B2
Filed 07/10/2001
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester with relative test output | ||
Patent #
US 7,003,410 B2
Filed 06/17/2004
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery tester capable of predicting a discharge voltage/discharge current of a battery | ||
Patent #
US 7,081,755 B2
Filed 09/03/2003
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Method and apparatus for charging a battery | ||
Patent #
US 6,329,793 B1
Filed 05/22/2000
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester | ||
Patent #
US 6,392,414 B2
Filed 06/07/2001
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Query based electronic battery tester | ||
Patent #
US 6,941,234 B2
Filed 09/30/2003
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Suppressing interference in AC measurements of cells, batteries and other electrical elements | ||
Patent #
US 6,417,669 B1
Filed 06/11/2001
|
Current Assignee
Keith S Champlin
|
Original Assignee
Keith S Champlin
|
Electronic battery tester | ||
Patent #
US 6,323,650 B1
Filed 04/07/2000
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery charge control device | ||
Patent #
US 6,696,819 B2
Filed 01/08/2002
|
Current Assignee
Franklin Grid Solutions LLC
|
Original Assignee
Midtronics Incorporated
|
Alternator tester | ||
Patent #
US 6,466,025 B1
Filed 01/13/2000
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Broad-band low-inductance cables for making kelvin connections to electrochemical cells and batteries | ||
Patent #
US 20060017447A1
Filed 07/22/2004
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Wireless battery tester/charger | ||
Patent #
US 20060006876A1
Filed 07/11/2005
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
System for automatically gathering battery information for use during battery testing/charging | ||
Patent #
US 20060038572A1
Filed 08/19/2005
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery tester that calculates its own reference values | ||
Patent #
US 20060125483A1
Filed 12/14/2005
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Centrally monitored sales of storage batteries | ||
Patent #
US 20060192564A1
Filed 02/16/2006
|
Current Assignee
Interstate Battery Systems International Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery testers with secondary functionality | ||
Patent #
US 20060217914A1
Filed 02/13/2006
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Theft prevention device for automotive vehicle service centers | ||
Patent #
US 20060267575A1
Filed 08/03/2006
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Apparatus and method for simulating a battery tester with a fixed resistance load | ||
Patent #
US 20060279288A1
Filed 08/21/2006
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Query based electronic battery tester | ||
Patent #
US 20060279287A1
Filed 04/24/2006
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Wilhelmus H.J. Koster, Kevin I. Bertness, Stephen J. Mcshane
|
Electronic battery tester with network communication | ||
Patent #
US 20060282227A1
Filed 02/16/2006
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Kevin I. Bertness
|
Electronic battery tester with relative test output | ||
Patent #
US 20060282226A1
Filed 02/16/2006
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Kevin I. Bertness, Vonderhaar J. David
|
Electronic battery tester with relative test output | ||
Patent #
US 20050021475A1
Filed 06/17/2004
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Energy management system for automotive vehicle | ||
Patent #
US 20050024061A1
Filed 06/14/2004
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
In-vehicle battery monitor | ||
Patent #
US 20050068039A1
Filed 10/05/2004
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Shunt connection to a PCB of an energy management system employed in an automotive vehicle | ||
Patent #
US 20050057865A1
Filed 07/23/2004
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Method and apparatus for measuring a parameter of a vehicle electrical system | ||
Patent #
US 20050052187A1
Filed 09/05/2003
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester/charger with integrated battery cell temperature measurement device | ||
Patent #
US 20050073314A1
Filed 10/03/2003
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester with network communication | ||
Patent #
US 20050075807A1
Filed 08/09/2004
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Apparatus and method for simulating a battery tester with a fixed resistance load | ||
Patent #
US 20050099185A1
Filed 11/11/2003
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Wireless battery monitor | ||
Patent #
US 20050162172A1
Filed 12/21/2004
|
Current Assignee
Franklin Grid Solutions LLC
|
Original Assignee
Midtronics Incorporated
|
Battery charger with booster pack | ||
Patent #
US 20050162124A1
Filed 06/03/2004
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Replaceable clamp for electronic battery tester | ||
Patent #
US 20050184732A1
Filed 02/20/2004
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester or charger with databus connection | ||
Patent #
US 20050212521A1
Filed 02/22/2005
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery charger with automatic customer notification system | ||
Patent #
US 20050206346A1
Filed 03/18/2004
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery test module | ||
Patent #
US 20050218902A1
Filed 06/02/2005
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Theft prevention device for automotive vehicle service centers | ||
Patent #
US 20050225446A1
Filed 04/13/2004
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Scan tool for electronic battery tester | ||
Patent #
US 20050231205A1
Filed 06/07/2005
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Method for evaluating capacity of secondary battery using mathematical calculation of specific resistance components of equivalent circuit model fitted from impedance spectrum | ||
Patent #
US 20040006440A1
Filed 07/01/2003
|
Current Assignee
Korea Kumho Petrochemical Co Limited
|
Original Assignee
Korea Kumho Petrochemical Co Limited
|
Modular battery tester for scan tool | ||
Patent #
US 20040036443A1
Filed 06/12/2003
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester configured to predict a load test result | ||
Patent #
US 20040046566A1
Filed 09/02/2003
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Alternator tester with encoded output | ||
Patent #
US 20040104728A1
Filed 09/05/2003
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Apparatus and method for protecting a battery from overdischarge | ||
Patent #
US 20040140904A1
Filed 01/22/2003
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Query based electronic battery tester | ||
Patent #
US 20040145371A1
Filed 09/30/2003
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Apparatus and method for predicting the remaining discharge time of a battery | ||
Patent #
US 20040157113A1
Filed 12/30/2003
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester cable | ||
Patent #
US 20040189309A1
Filed 06/23/2003
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Kevin I. Bertness, Krzysztof Jeziorczak
|
Electronic battery tester | ||
Patent #
US 20040189308A1
Filed 03/25/2003
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Automotive battery charging system tester | ||
Patent #
US 20040232918A1
Filed 03/02/2004
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester | ||
Patent #
US 20040263176A1
Filed 07/22/2004
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Kevin I. Bertness, Vonderhaar J. David
|
Cable for electronic battery tester | ||
Patent #
US 20040257084A1
Filed 06/23/2003
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Apparatus and method for counteracting self discharge in a storage battery | ||
Patent #
US 20040251876A1
Filed 03/18/2004
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester having a user interface to configure a printer | ||
Patent #
US 20040251908A1
Filed 06/16/2003
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Method and apparatus for auditing a battery test | ||
Patent #
US 20030001579A1
Filed 03/14/2002
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Automotive vehicle electrical system diagnostic device | ||
Patent #
US 20030038637A1
Filed 07/19/2002
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester with relative test output | ||
Patent #
US 20030088375A1
Filed 10/02/2002
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Booster pack with storage capacitor | ||
Patent #
US 20030184258A1
Filed 03/28/2002
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester with network communication | ||
Patent #
US 20020171428A1
Filed 03/07/2002
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Method and apparatus for testing cells and batteries embedded in series/parallel systems | ||
Patent #
US 20020180445A1
Filed 04/09/2002
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery test module | ||
Patent #
US 20020193955A1
Filed 08/13/2002
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Method of and apparatus for measuring battery capacity by impedance spectrum analysis | ||
Patent #
US 6,208,147 B1
Filed 03/02/1999
|
Current Assignee
Korea Kumho Petrochemical Co Limited
|
Original Assignee
Korea Kumho Petrochemical Co Limited
|
Battery state of charge determination with plural periodic measurements to determine its internal impedance and geometric capacitance | ||
Patent #
US 5,369,364 A
Filed 04/26/1993
|
Current Assignee
Medtronic Incorporated
|
Original Assignee
Medtronic Incorporated
|
Method and apparatus for measuring a parameter of a vehicle electrical system | ||
Patent #
US 8,164,343 B2
Filed 10/30/2008
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Automotive battery charging system tester | ||
Patent #
US 8,198,900 B2
Filed 03/02/2004
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery testers with secondary functionality | ||
Patent #
US 8,237,448 B2
Filed 07/07/2008
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery tester for electric vehicle | ||
Patent #
US 8,306,690 B2
Filed 07/17/2008
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
System for automatically gathering battery information | ||
Patent #
US 8,344,685 B2
Filed 04/01/2009
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Integrated tag reader and environment sensor | ||
Patent #
US 8,436,619 B2
Filed 04/01/2009
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Simplification of inventory management | ||
Patent #
US 8,442,877 B2
Filed 04/01/2009
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Automotive vehicle electrical system diagnostic device | ||
Patent #
US 8,493,022 B2
Filed 04/22/2010
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester or charger with databus connection | ||
Patent #
US 8,513,949 B2
Filed 09/04/2008
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
In-vehicle battery monitor | ||
Patent #
US 8,674,654 B2
Filed 08/09/2011
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Method and apparatus for measuring a parameter of a vehicle electrical system | ||
Patent #
US 8,674,711 B2
Filed 12/19/2006
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
System for automatically gathering battery information | ||
Patent #
US 8,704,483 B2
Filed 11/28/2012
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Storage battery and battery tester | ||
Patent #
US 8,203,345 B2
Filed 12/04/2008
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery pack maintenance for electric vehicles | ||
Patent #
US 8,738,309 B2
Filed 09/30/2010
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester | ||
Patent #
US 8,754,653 B2
Filed 07/07/2009
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester mounted in a vehicle | ||
Patent #
US 8,872,516 B2
Filed 02/28/2011
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester with battery age input | ||
Patent #
US 8,872,517 B2
Filed 03/15/2011
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Electronic battery tester with network communication | ||
Patent #
US 8,958,998 B2
Filed 04/12/2010
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
System for automatically gathering battery information | ||
Patent #
US 8,963,550 B2
Filed 10/11/2011
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Method and apparatus for measuring a parameter of a vehicle electrical system | ||
Patent #
US 9,018,958 B2
Filed 10/19/2011
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery testers with secondary functionality | ||
Patent #
US 9,052,366 B2
Filed 08/06/2012
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
METHOD FOR MANAGING AND DIAGNOSING A BATTERY | ||
Patent #
US 20150177333A1
Filed 08/06/2013
|
Current Assignee
Commissariat a LEnergie Atomique
|
Original Assignee
Commissariat a LEnergie Atomique
|
Electronic battery tester for testing storage battery | ||
Patent #
US 9,201,120 B2
Filed 08/09/2011
|
Current Assignee
Franklin Grid Solutions LLC
|
Original Assignee
Midtronics Incorporated
|
Electronic storage battery diagnostic system | ||
Patent #
US 9,229,062 B2
Filed 05/23/2011
|
Current Assignee
Franklin Grid Solutions LLC
|
Original Assignee
Midtronics Incorporated
|
Current clamp with jaw closure detection | ||
Patent #
US 9,244,100 B2
Filed 03/11/2014
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Method and apparatus for measuring a parameter of a vehicle electrical system | ||
Patent #
US 9,255,955 B2
Filed 05/02/2011
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery tester for electric vehicle | ||
Patent #
US 9,274,157 B2
Filed 09/23/2010
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery testing system and method | ||
Patent #
US 9,312,575 B2
Filed 05/13/2014
|
Current Assignee
Franklin Grid Solutions LLC
|
Original Assignee
Midtronics Incorporated
|
Battery tester for electric vehicle | ||
Patent #
US 9,335,362 B2
Filed 11/05/2012
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery maintenance device with thermal buffer | ||
Patent #
US 9,419,311 B2
Filed 06/18/2010
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Monitor for front terminal batteries | ||
Patent #
US 9,425,487 B2
Filed 03/01/2011
|
Current Assignee
Franklin Grid Solutions LLC
|
Original Assignee
Midtronics Incorporated
|
System for automatically gathering battery information | ||
Patent #
US 9,496,720 B2
Filed 01/24/2012
|
Current Assignee
Franklin Grid Solutions LLC
|
Original Assignee
Midtronics Incorporated
|
Method and apparatus for detecting cell deterioration in an electrochemical cell or battery | ||
Patent #
US 9,588,185 B2
Filed 02/25/2010
|
Current Assignee
Keith S Champlin
|
Original Assignee
Keith S Champlin
|
Suppressing HF cable oscillations during dynamic measurements of cells and batteries | ||
Patent #
US 9,851,411 B2
Filed 03/12/2013
|
Current Assignee
Keith S Champlin
|
Original Assignee
Keith S Champlin
|
Battery clamp with endoskeleton design | ||
Patent #
US 9,923,289 B2
Filed 01/16/2015
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Kelvin connector adapter for storage battery | ||
Patent #
US 9,966,676 B2
Filed 09/27/2016
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Hybrid and electric vehicle battery pack maintenance device | ||
Patent #
US 10,046,649 B2
Filed 03/14/2013
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Cable connector for electronic battery tester | ||
Patent #
US 10,222,397 B2
Filed 09/22/2015
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Alternator tester | ||
Patent #
US 10,317,468 B2
Filed 01/26/2016
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery pack tester | ||
Patent #
US 10,429,449 B2
Filed 11/08/2012
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Automotive maintenance system | ||
Patent #
US 10,473,555 B2
Filed 07/14/2015
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Battery clamp | ||
Patent #
US 10,608,353 B2
Filed 06/27/2017
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
Calibration and programming of in-vehicle battery sensors | ||
Patent #
US 10,843,574 B2
Filed 04/28/2016
|
Current Assignee
Midtronics Incorporated
|
Original Assignee
Midtronics Incorporated
|
No References
7 Claims
-
2. The method of claim 1 for determining the state-of-charge of a nickel-cadmium battery wherein the batteries are initially discharged, fully charged, left standing for three hours, and then the farad capacitance thereof is measured whereby the measured capacitance indicates the state-of-charge of the battery with reference to the standard reference curve.
-
3. The method of claim 2 in which said initial discharging is down to 1.1 volts at a ten hour rate and is followed by charging that breaks down oxide on the cadmium electrode of said battery.
-
4. Method for measuring the capacity of nickel-cadmium batteries whose terminal voltage remains constant over a relatively wide range of charge, comprising the steps of nondestructively measuring the farad capacitance of said nickel-cadmium batteries substantially independently of contact and internal battery resistance and selectively determining from said capacitance measurement the state-of-chargE of said batteries without discharging the same.
-
5. The method claim 4 in which said measured farad capacitance is a function of the state-of-charge of said batteries corresponding to the curve of FIG. 3 for the use of said batteries as remote energy sources for balloon flights.
-
6. The method of claim 4 wherein said measured farad capacitance corresponds to the relationship of the farad capacitance to the state-of-charge of nickel-cadmium batteries of a single type selected from the group, consisting of button, cylindrical and button stack nickel-cadmium batteries, and said measurement of said farad capacitance is selectively made with batteries of that type.
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7. The method of claim 4 wherein said farad capacitance of said batteries is measured with a 60 Hz four lead, transformer ratio arm bridge for measuring said capacitance substantially independently of the contact and internal resistance of said batteries.
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